Kia Optima Hybrid: Brake System / AHB(Active Hydraulic Boost) System

Troubleshooting

Troubleshooting SymptomSuspect AreaReferenceLower pedal or spongy pedal1. Integrated Brake Actuation Unit (Air in)air·bleed2. AHB system (Fluid leaks)replace3. Piston seals in IBAU (Worn or damaged)replaceBrake ...

Description and Operation

Description Regeneration Brake System During deceleration or braking of an electric vehicle or HEV, the drive motor acts as an alternator and charges the battery by converting the vehicle’s kinetic energy ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


Fuel Pressure Test 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group).     When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Oil Pump Uni t(OPU) Components and Components Location


Components Location 1. Oil Pump Unit (OPU) ...

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